<!DOCTYPE html>
<html ng-app>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<script type="text/javascript" src="js/angular.js" ></script>
	</head>
	<body>
		<select ng-model="xx">
			<option value="run">run</option>
			<option value="sing">sing</option>
		</select>
		<div ng-switch="xx">
			<div ng-switch-when="run">
				run
			</div>
		   <div ng-switch-when="sing">
				sing
			</div>	
		</div>
	</body>
</html>
